VirtualPathUtility.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / VirtualPathUtility.cs / 2 / VirtualPathUtility.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 * VirtualPathUtility class 
 *
 * Copyright (c) 2004 Microsoft Corporation 
 */

namespace System.Web {
 
using System.Web.Util;
using System.Security.Permissions; 
 
/*
 * Code to perform virtual path operations 
 */
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public static class VirtualPathUtility {
 
    /* Discover virtual path type */
 
    public static bool IsAbsolute(string virtualPath) { 
        VirtualPath virtualPathObject = VirtualPath.Create(virtualPath);
        return !virtualPathObject.IsRelative && virtualPathObject.VirtualPathStringIfAvailable != null; 
    }

    public static bool IsAppRelative(string virtualPath) {
        VirtualPath virtualPathObject = VirtualPath.Create(virtualPath); 
        return virtualPathObject.VirtualPathStringIfAvailable == null;
    } 
 
    /* Convert between virtual path types */
    public static string ToAppRelative(string virtualPath) { 
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
        return virtualPathObject.AppRelativeVirtualPathString;
    }
 
    public static string ToAppRelative(string virtualPath, string applicationPath) {
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath); 
 
        // If it was already app relative, just return it
        if (virtualPathObject.AppRelativeVirtualPathStringIfAvailable != null) 
            return virtualPathObject.AppRelativeVirtualPathStringIfAvailable;

        VirtualPath appVirtualPath = VirtualPath.CreateAbsoluteTrailingSlash(applicationPath);
 
        return UrlPath.MakeVirtualPathAppRelative(virtualPathObject.VirtualPathString,
            appVirtualPath.VirtualPathString, true /*nullIfNotInApp*/); 
    } 

    public static string ToAbsolute(string virtualPath) { 
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
        return virtualPathObject.VirtualPathString;
    }
 
    public static string ToAbsolute(string virtualPath, string applicationPath) {
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath); 
 
        // If it was already absolute, just return it
        if (virtualPathObject.VirtualPathStringIfAvailable != null) 
            return virtualPathObject.VirtualPathStringIfAvailable;

        VirtualPath appVirtualPath = VirtualPath.CreateAbsoluteTrailingSlash(applicationPath);
 
        return UrlPath.MakeVirtualPathAppAbsolute(virtualPathObject.AppRelativeVirtualPathString,
            appVirtualPath.VirtualPathString); 
    } 

 
    /* Get pieces of virtual path */
    public static string GetFileName(string virtualPath) {
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
        return virtualPathObject.FileName; 
    }
 
    public static string GetDirectory(string virtualPath) { 
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
 
        virtualPathObject = virtualPathObject.Parent;
        if (virtualPathObject == null)
            return null;
 
        return virtualPathObject.VirtualPathStringWhicheverAvailable;
    } 
 
    public static string GetExtension(string virtualPath) {
        VirtualPath virtualPathObject = VirtualPath.Create(virtualPath); 
        return virtualPathObject.Extension;
    }

    /* Canonicalize virtual paths */ 
    public static string AppendTrailingSlash(string virtualPath) {
        return UrlPath.AppendSlashToPathIfNeeded(virtualPath); 
    } 

    public static string RemoveTrailingSlash(string virtualPath) { 
        return UrlPath.RemoveSlashFromPathIfNeeded(virtualPath);
    }

// Removing Reduce per DevDiv 43118 
#if OLD
    public static string Reduce(string virtualPath) { 
        VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath); 
        return virtualPathObject.VirtualPathString;
    } 
#endif

    /* Work with multiple virtual paths */
    public static string Combine(string basePath, string relativePath) { 
        VirtualPath virtualPath = VirtualPath.Combine(VirtualPath.CreateNonRelative(basePath),
            VirtualPath.Create(relativePath)); 
        return virtualPath.VirtualPathStringWhicheverAvailable; 
    }
 
    public static string MakeRelative(string fromPath, string toPath) {
        return UrlPath.MakeRelative(fromPath, toPath);
    }
} 

 
}

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